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Subject: Economics
Semester: 2
Period: 4
Week: 22
School Name:
Teacher’s Name:
Subject: Economics
Grade Level: Grade 12
Week & Period: Week 22, Period IV
Date:
Topic: International Trade and Balance of Payments
Sub-topic: The Law of Comparative Cost and Trade Policies
Instructional Objectives
By the end of this lesson, learners should be able to:
- Define the Law of Comparative Cost and Absolute Advantage.
- Explain Free Trade and Protectionism (with reference to UNCTAD).
- Analyze the impact of these concepts on international trade, particularly in Liberia.
Instructional Materials
- Charts illustrating comparative cost theory
- Trade maps
- Case studies on Liberia’s trade policies
- Whiteboard and markers
Previous Knowledge
Students have learned the basic definitions and differences between types of trade.
A – Anticipation (Engagement/Warm-Up)
Motivational Set (5 minutes) Ask:
“If Liberia is good at producing rubber and another country is good at producing rice, should both still produce both goods? Why or why not?” This leads to discussion on comparative advantage.
B – Building Knowledge (Development)
Teacher’s Explanation (20 minutes)
The Law of Comparative Cost:
- States that a country should specialize in the production of goods it can produce at a lower opportunity cost and trade for others.
Absolute Advantage:
- A country has absolute advantage if it can produce a good more efficiently (with fewer resources) than another.
Example:
- Liberia can produce 100 units of rubber or 50 units of rice.
- Ghana can produce 70 units of rubber or 100 units of rice.
- Liberia should specialize in rubber; Ghana in rice.
Free Trade:
- Trade without tariffs or restrictions.
- Promotes efficiency and access to more goods.
Protectionism:
- Use of tariffs, quotas, and other restrictions to protect local industries.
- May hinder competition and lead to higher prices.
UNCTAD:
- United Nations Conference on Trade and Development: supports developing countries in global trade.
Class Activity (10 minutes)
Divide learners into groups and give each group a scenario. Let them determine which country has comparative advantage and whether trade should be free or protected. Present and justify answers.
C – Consolidation (Wrap-Up and Evaluation)
Teacher Summary (3 minutes) Summarize the laws of comparative and absolute advantage and how they guide trade policies like free trade and protectionism.
Assessment (7 minutes)
Multiple Choice:
- Comparative advantage means: A. Producing everything locally
Importing everything
C. Producing goods at lower opportunity cost
D. Selling cheaper goods only - Protectionism includes: A. Free exchange of goods
Import bans and tariffs
C. Subsidizing foreign firms
D. Liberalizing trade laws
Short Answer: 3. Define the law of comparative cost. 4. What is the role of UNCTAD in international trade?
Assignment
Write a paragraph describing the difference between comparative and absolute advantage using Liberia and one other country as an example.
Teacher's Reflection (Questions Only)
- Did students understand the core concept of comparative cost?
- Could learners distinguish between free trade and protectionism?
- Were group activities helpful in analyzing trade scenarios?
- Did learners provide accurate country-based examples?
- Were all lesson objectives achieved?